Sony VPL-SX535 Operating Instructions Manual page 33

Symptoms
The image is not clear.
The image is noisy.
No sound.
The remote commander
does not work.
The fan is noisy.
Remedy
Check if the projector is in focus.
The picture will not be clear if condensation has accumulated
on the lens. In this case, let the projector sit for about two
hours with the power on.
Check if the connecting cable is connected to the external
equipment properly.
Check that the connecting cables between the projector and
external video or audio equipment are securely connected.
Check if the external audio equipment is set properly.
Check if the "Speaker" is not set to "Off".
Audio is not output if audio muting is activated.
Check if the volume is not set to minimum.
Check if the batteries are installed correctly.
Check if the batteries are not exhausted.
The sound from the fan is often greater than normal to cool the
lamp, etc. in the following cases.
• "Lamp Mode" is set to "High."
• The unit is used at a high altitude. "High Altitude Mode" is
set to "On."
• The unit is used in the location where the temperature is high.
If the ventilation holes are blocked, the internal temperature of
the projector rises and the fan noise becomes larger.
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Troubleshooting